<template>
	<view>
		<my-search @click="goSearch"></my-search>
		<view class="scroll-view-container">
			<scroll-view scroll-y="true" :style="{height: wh+'px'}" class="left-scroll-view">
				<block v-for="item,index in cateList" :key="item.cat_id">
					<view :class="['left-scrool-item',active===index?'active':''] " @click="activeChange(index)">
						{{item.cat_name}}
					</view>
				</block>
			</scroll-view>
			<scroll-view scroll-y="true" :style="{height: wh+'px'}" :scroll-top="scrollTop">
				<view class="cate-lv2" v-for="item2,index2 in cateLevel2" :key="index2">
					<view class="cate-lv2-title">
						/ {{item2.cat_name}} /
					</view>
					<view class="cate-lv3-list">
						<view class="cate-lv3-item" v-for="item3,index3 in item2.children" :key="index3"
							@click="goToGoodsList(item3)">
							<image :src="item3.cat_icon"></image>
							<text>{{item3.cat_name}}</text>
						</view>
					</view>
				</view>
			</scroll-view>
		</view>
	</view>
</template>

<script>
	import mixins from '@/mixins/tabber.badge.js'
	export default {
		mixins: [mixins],
		data() {
			return {
				wh: 0,
				cateList: [],
				active: 0,
				cateLevel2: [],
				scrollTop: 0
			}
		},
		onLoad() {
			const sysInfo = uni.getSystemInfoSync()
			this.wh = sysInfo.windowHeight - 50
			this.getCateList()
		},
		methods: {
			async getCateList() {
				const res = await uni.$http.get('/api/public/v1/categories')
				console.log(res);
				if (!res.data.meta.status == 200) return uni.$showMsg()
				this.cateList = res.data.message
				this.cateLevel2 = res.data.message[0].children
			},
			activeChange(index) {
				this.active = index
				this.cateLevel2 = this.cateList[index].children
				this.scrollTop = this.scrollTop == 0 ? 1 : 0
			},
			goToGoodsList(item) {
				uni.navigateTo({
					url: '/subpkg/goods_list/goods_list?cid=' + item.cat_id
				})
			},
			goSearch(a) {
				uni.navigateTo({
					url: '/subpkg/search/search'
				})
			}
		}
	}
</script>


<style lang="scss">
	.scroll-view-container {
		display: flex;

		.left-scroll-view {
			width: 120px;

			.left-scrool-item {
				background-color: #f7f7f7;
				line-height: 60px;
				font-size: 12px;
				text-align: center;

				&.active {
					position: relative;
					background-color: #fff;

					&::before {
						content: '';
						position: absolute;
						left: 0;
						top: 50%;
						transform: translateY(-50%);
						display: block;
						width: 3px;
						height: 30px;
						background-color: #c00000;
					}
				}

			}
		}

		.cate-lv2-title {
			font-size: 12px;
			font-weight: bold;
			text-align: center;
			padding: 15px 0;
		}

		.cate-lv3-list {
			display: flex;
			flex-wrap: wrap;

			.cate-lv3-item {
				display: flex;
				flex-direction: column;
				align-items: center;
				justify-content: center;
				width: 33.3%;
				margin-bottom: 10px;

				image {
					width: 60px;
					height: 60px;
				}

				text {}
			}
		}
	}
</style>